Finding the Fourth Proportional to 776,357.12, 1,164,529.20 and 215,391.68
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Solution
The fourth proportional to 776,357.12, 1,164,529.20 and 215,391.68 is: 323,085.72
Step by Step Solution
- Step 1: Write the proportion equation
776,357.12 : 1,164,529.20 = 215,391.68 : x - Step 2: Convert to fraction form
776,357.12/1,164,529.20 = 215,391.68/x - Step 3: Cross multiply
776,357.12x = 1,164,529.20 × 215,391.68 - Step 4: Simplify right side
776,357.12x = 250,829,900,797.06 - Step 5: Solve for x
x = 250,829,900,797.06/776,357.12 - Step 6: Final answer
x = 323,085.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.